Causing rotation of peojectiles



{No Model.)

'W. T. UNGE. v I GAUSING ROTATION OP PROJECTILBS.

.No. 533,572. Patentgd Feb. 6,1895.

W/7'NESSES: //v VEN 70/? ByO MJg' A'TZTOHNE Y.

UNITED STATES PATENT OFFICE.

WILHELM THEODQR UNGE, or s'rooKI-ioLIu,sWEDEN.

CAUSING ROTATION OF PROJECTKLES.

SFEGIFICATION forming part of Letters Patent No. 533,572, dated February 5, 1895.

Application filed December 28, 1893. Serial 110,494,954. (No model.) Patented in England May 30,1893,No. 26,006; in Sweden May 30, 1893, No. 5,556; in Switzerland November 29, 1893,1110. 7,935; in PranceNovember 29,1893,N0. 234.424; in Belgium November 30. 1893,11'0. 107,562; in GermanyNovember'30,1893,110.76.786; in Norway December 1, 1893,11'0- 3,430] in ItalyDecember 31, 1393,1XVIII, 85,281, LXIX, 174, and in Austria-Hungary July 25,1894, No. 64,740 and No. 5,360-

To all whom it may concern:

Be it known that I, WILHELM Tnnonoa UNGE, a subject of the King of Sweden and Norway, and a resident of Stockholm, in the Kingdom of Sweden, have invented certain new and useful Improvements in Firearms for Effecting the Rotary Motion of Projectiles, (for which patents have been granted to me in France, No. 234,424, dated November 29,

' in England, No. 25,005, dated May 30, 1893,) of

which the following is a specification.

The invention relates to tire arms or guns and the object of the invention is to provide means for imparting to the pro ectlle a rotary motion about its axis without the aid of rifles in the bore of the gun.

The invention is particularly applicable to guns which impart a low initial velocity to the projectile and it is especially well adapted to throwing rockets having no 51191553116. projectiles filled with rocket composition and arranged like rockets, the projectiles themselves developing the main power requisite for projection or propulsion.

In the'accompanying drawings WhlChdllllstrate my invention-Figure 1 is a longitudinal section of the gun, casing and projectile, in one of its forms, and Fig. 2 is a face-view of the driving disk. Fig. 3 illustrates another form of the device which will be hereinafter described.

Referring to Figs. 1 and 2, H is a tubular having a solid butt D, and provided casin g E, which have rocking bearwith trunnions ings in a suitable bed X. In this casing is mounted a gun-barrel A, which has a bearing for rotation at J, at the front end of the easing H, and at its rear end a breech-piece B, provided with an axially arranged shaft or spindle C, which finds a bearing in the buttpiece D, of the casing. The casing H, is adapted to be elevated to the desired angle with the base by means of a support K, hinged to the casing H, and provided at its lower end with a series of holes, as a, seen in dotted lines in Fig. 1, through either of which a pin may be passed into a hole in the base X.'

On the protruding end of the barrel A, is fixed a carrier or disk L, on the face of which are two (or more if desired) tubes M, M, charged with some gas-producing substance like rocket composition. These tubes are provided at one end with a fuse, and when ignited they drive the disk L, around, thus imparting an axial, rotary motion to the barrel and to the projectile N, therein. The disk L, also serves as a fiy-wheel and it may be fixed, if desired, on the rearwardly projecting rocket at the time it is projected from the barrel.

Each of the tubes M, M, will be placed sub stantially at right-angles to one'of the radii of the carrier or disk L.

Other means than the tubes may be pro vided for rotating the barrel A, as for example a spring 0, seen in dotted lines in Fig. 1, may be coiled around the barrel within the casing. One end of the spring will be fixed to the casing and the other end to the barrel, somewhat inthe manner of the spring in a shade roller. I

I compel the projectile N, to rotate with the barrel A, by means of projections in the nature of pins or screws I, set in the barrel and entering slight recesses in the projectile, which will be so arranged as not to prevent the projectile from moving forward freely.

The fuse of the projectile or the charge behind it, may be ignited by electricity if desired.

Mechanical means, such as a belt and pulley, may be used to rotate the projectile. If the barrel A, be rotated, as in Fig. 1, the pulley F, may be fixed on the spindle C, as indicated by dotted lines in Fig. 1.

In Fig. 3 the construction is somewhat difterent, the barrel A, being non-rotative and forming a part of the casing H, and the proiectile having its base seated in a deep cup A, to which the stem 0, is attached. This view also shows the pulley and belt for rotat' ing the projectile in full lines.

E represents the trunnions in Fig. 3.

In Fig. 3 the cup A, is only an elongation of the breech-piece B, and said cup will hold the charge if any be employed.

It is evident that any desired means, independent of the advancing movement of the projectile, may be employed to rotate the latter in the barrel and in this feature lies the invention. In all guns, mortars and the like with which I am acquainted, the projectile is rotated by its forward movement in the gun, or by means brought into play only by the forward movement of the projectile, while in my invention the latter is rotated independently of such forward movement, or of the gas pressure which drives the projectile.

Having thus described my invention, I claim 1. The combination of a rotatively mounted holder, having internal projections, 23. projectile having recesses adapted to receive said projections of the holder, substantially as set forth.

2. The combination of a rotatively mounted holder, and a projectile arranged therein, and a driver mounted on said barrel and consistng of a carrier disk provided with tubes M M, charged with gas-producing material such as rocket composition, substantially as set forth.

3. The combination of a barrel and a tubular casing inclosing the same and having a bearing therefor at its forward end, said barrel having a rearwardlywextending axiallyaligned spindle provided with a bearing in the rearwall of said casing, and means for imparting rotary movement to said barrel, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WILHELM TI-IEODOR UN GE. I Witnesses:

ERNST SVANGIRST, CARL TH. LUNDHOLM'. 

